Was It For This, composed by William Wordsworth (1770-1850) in 1798 and put in The Prelude in 1805, tells us the beginning of the poet's history. The scenic description is quite impressive, especially because of the "voice" of River Derwent constantly streaming, which ‘temper[ed]' his "human waywardness" into "infant softness." However, further investigation into Wordsworth's work along with the letters of his sister, Dorothy Wordsworth (1771-1855), makes it clear that Dorothy herself had been the most significant tutelary stream to nurture his poetic sensibility since childhood, and to calm his potentially explosive mentality. Further speaking, it was she who controlled the complex situation of her brother's "human waywardness" and "infant softness." Everyone knows Dorothy's contribution to Wordsworth in the prime of his life as a poet, but it is also noteworthy to see how she was a brilliant navigator enabling Wordsworth to be Wordsworth from the first. Moreover, it is interesting to note that the communication that took place between the siblings may represent the English people's mental shift to nature from the 18th century to the 19th century, when they started associating mild complacency with nature, which till then had been regarded as nothing but a manifestation of chaos.論文